Physics of self-recovering single photon avalanche detectors

Sifang You; James Cheng; Yuhwa Lo

doi:10.1117/12.895971

16 September 2011 Physics of self-recovering single photon avalanche detectors

Sifang You, James Cheng, Yuhwa Lo

Proceedings Volume 8155, Infrared Sensors, Devices, and Applications; and Single Photon Imaging II; 81551H (2011) https://doi.org/10.1117/12.895971
Event: SPIE Optical Engineering + Applications, 2011, San Diego, California, United States

Abstract

An InGaAs/InAlAs/InP single photon avalanche detector featuring an InAlAs Transient Carrier Buffer (TCB) layer to tentatively stop avalanche-generated electrons as a negative feedback mechanism demonstrates self-quenching and selfrecovering capabilities. The escape rate of those stopped avalanche electrons from the TCB barrier determines the recovery time and thus data rate of the detector. We show that thermionic emission and tunneling are key mechanisms in the self-recovery process. The recovery time increases with the decrease of temperature and the decrease of applied bias.

Citation Download Citation

Sifang You, James Cheng, and Yuhwa Lo "Physics of self-recovering single photon avalanche detectors", Proc. SPIE 8155, Infrared Sensors, Devices, and Applications; and Single Photon Imaging II, 81551H (16 September 2011); https://doi.org/10.1117/12.895971

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